Player inventory II - Keyboard player

Add ability to place golf balls on some surfaces (with script GolfBallPlaceableArea, currently World, begin tile of minigolf courses and main town roads) with key Alpha1 (number key on row with backspace).
Add ability to spawn clubs in hand with key Alpha2.
Add fix for player jumping up and down in certain places.
Change clipping pane of main camera to show whole golf club (previously would chop out center of it).
Add OnSceneChange method on player to trigger actions on player when changing scenes.